3 models

1900 Series Double Beam Spectrophotometer

Name: 1900 Series Double Beam Spectrophotometer
Brand: YOKON

Three double-beam spectrophotometers from UV1900 to UV1901S covering 190-1100 nm with 0. 1 nm wavelength repeatability and 0. 2 percent T photometric accuracy.

Documentation

Datasheets and manuals are issued per model and revision. Ask for the documents that match the configuration you are considering.

See linked documents

Category UV-Vis Spectrophotometer In production

1900 Series Double Beam Spectrophotometer core specifications
Optical System	Double Beam, Grating 1200 lines/mm
Wavelength Range	190-1100 nm
Wavelength Accuracy	±0.1nm@656.1nm, ±0.3nm@all

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Model comparison

1900 Series Double Beam Spectrophotometer range at a glance

Full specifications for every model in the series, side by side. Tell us the sample type and throughput you need and we will point to the closest configuration.

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1900 Series Double Beam Spectrophotometer — 3 models
Parameter	UV1900	UV1901	UV1901S
Optical System	Double Beam, Grating 1200 lines/mm	Double Beam, Grating 1200 lines/mm	Double Beam, Grating 1200 lines/mm
Wavelength Range	190-1100 nm	190-1100 nm	190-1100 nm
Spectral Bandwidth	2nm	1nm	0.5/1/2/4/5nm
Wavelength Accuracy	±0.1nm@656.1nm, ±0.3nm@all	±0.1nm@656.1nm, ±0.3nm@all	±0.1nm@656.1nm, ±0.3nm@all
Wavelength Repeatability	≤0.1nm	≤0.1nm	≤0.1nm
Photometric Accuracy	0.2%T(0~100%T), ±0.002A(0-0.5A), ±0.004A(0.5-1A)	0.2%T(0~100%T), ±0.002A(0-0.5A), ±0.004A(0.5-1A)	0.2%T(0~100%T), ±0.002A(0-0.5A), ±0.004A(0.5-1A)
Photometric Repeatability	≤0.15%T (0-100%T), 0.001A(0-0.5A), 0.002A(0.5-1A)	≤0.15%T (0-100%T), 0.001A(0-0.5A), 0.002A(0.5-1A)	≤0.15%T (0-100%T), 0.001A(0-0.5A), 0.002A(0.5-1A)
Photometric Range	0-200%T, -0.3~3A, 0-9999C	0-200%T, -0.3~3A, 0-9999C	0-200%T, -0.3~3A, 0-9999C
Stray Light	≤0.03%T@220nm, 360nm	≤0.03%T@220nm, 360nm	≤0.03%T@220nm, 360nm
Stability	±0.0005A/h@500nm	±0.0005A/h@500nm	±0.0005A/h@500nm
Baseline Flatness	±0.002A	±0.001A	±0.001A
Noise	0.0005A@500nm	0.0005A@500nm	0.0005A@500nm
Work Mode	T, A, C, E	T, A, C, E	T, A, C, E
Scanning Speed	Hi, Med, Low (Max. 3000nm/min)	Hi, Med, Low (Max. 3000nm/min)	Hi, Med, Low (Max. 3000nm/min)
Wavelength Setting	Auto	Auto	Auto
Display	320*240 LCD	320*240 LCD	320*240 LCD
Light Source	Deuterium & Tungsten lamp	Deuterium & Tungsten lamp	Deuterium & Tungsten lamp
Detector	Silicon Photodiode	Silicon Photodiode	Silicon Photodiode
Cuvette Holder	10mm manual 4-cell holder	10mm manual 4-cell holder	10mm manual 4-cell holder
Output	USB, RS232	USB, RS232	USB, RS232
Power	AC 110-220V 50-60Hz	AC 110-220V 50-60Hz	AC 110-220V 50-60Hz

Shaded labels mark the specifications that differ between models.

Overview

What this instrument is designed to do, in plain terms.

The 1900 Series Double Beam Spectrophotometer covers 3 models, UV1900 to UV1901S. The comparison table lists the values that differ across the range.

Large 320*240 dots highlighted LCD.
Functions include Photometric measurement, Quantitative measurement, Kinetics, Spectrum scan, DNA/Protein test, multi-wavelength test, etc.
In-house massive memory is capable of saving up to 1024M for test data & working curves.
Supports USB storage. The USB port can be used for data transfer and exporting to Excel for further processing, analysis and storage.
Socket-type deuterium and tungsten lamps support lamp switching without optical realignment, and the lamps are easy to replace.
Large sample chamber can accommodate 5-100mm cuvettes of all kinds.
Extensive accessories are optional, such as auto 8-cell holder, film holder, tube rack, peltier/sipper system, integrating sphere, reflection accessory, 21 CFR compliant software, etc.